Messages in this thread | | | Date | Tue, 27 Oct 2015 18:41:39 +0100 | From | Ingo Molnar <> | Subject | Re: [GIT PULL] EFI changes for v4.4 |
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* Matt Fleming <matt@codeblueprint.co.uk> wrote:
> Folks, please pull the following bugfix from Sai which prevents a > kernel panic when booting an EFI machine with CONFIG_DEBUG_VIRTUAL > enabled. > > This bug was reported last year by Dave Hansen, > > https://lkml.kernel.org/r/5462999A.7090706@intel.com > > and since nobody else has reported it, and given that it's only > triggerable with a debug config option, I figured this should be > targeted at v4.4. > > The following changes since commit 0f96a99dab366333439e110d6ad253bc7c557c09: > > efi: Add "efi_fake_mem" boot option (2015-10-12 14:20:09 +0100) > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git tags/efi-next > > for you to fetch changes up to 2c66e24d75d424919c42288b418d2e593fa818b1: > > x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled (2015-10-25 10:22:25 +0000) > > ---------------------------------------------------------------- > * Fix a kernel panic by not passing EFI virtual mapping addresses to > __pa() in the x86 pageattr code. Since these virtual addreses are > not part of the direct mapping or kernel text mapping, passing them > to __pa() will trigger a BUG_ON() when CONFIG_DEBUG_VIRTUAL is > enabled - Sai Praneeth Prakhya > > ---------------------------------------------------------------- > Sai Praneeth (1): > x86/efi: Fix kernel panic when CONFIG_DEBUG_VIRTUAL is enabled > > arch/x86/mm/pageattr.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-)
Pulled, thanks Matt!
Ingo
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